CN1088493A - The integral cold squeezing production method of brake shoe - Google Patents
The integral cold squeezing production method of brake shoe Download PDFInfo
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- CN1088493A CN1088493A CN 92110012 CN92110012A CN1088493A CN 1088493 A CN1088493 A CN 1088493A CN 92110012 CN92110012 CN 92110012 CN 92110012 A CN92110012 A CN 92110012A CN 1088493 A CN1088493 A CN 1088493A
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- brake shoe
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- mutton
- tendons
- beef
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Abstract
The present invention relates to brake system of car, disclose a kind of manufacture method of brake shoe.Whole cold extrusion production process is adopted in this invention, with hot rolling T shape material as former material, be cut into certain length by different vehicle requirements, select the mould that is complementary with vehicle for use, the former material of T shape that cuts is placed in the mould, under certain pressure, promptly finishes through the first type of bending, the redundance three road processes of going out required hole, excision part.This invention need not heated, be welded, and does not need machining, has highly polished, hoof face thickness unanimity, the perpendicularity of the tendons of beef, mutton or pork and hoof face is good, and the Pingdu of the tendons of beef, mutton or pork is good distortionless, and product strength is good, the precision advantages of higher has increased the sensitivity and the reliability of braking, and has produced gratifying effect.
Description
The present invention relates to the automotive brake field, relate generally to a kind of integral cold squeezing production method of brake shoe of automobile drum brake.
Brake shoe is the major part of automobile drum brake, and its performance directly affects braking quality.At present, the method for producing the brake shoe of automotive brake both at home and abroad has casting, hot rolling and three kinds of methods of welding.The microcomputer retrieval does not also have whole cold extrusion to produce this method of brake shoe through Henan Province information institute.Usually make brake shoe with the method for welding, what obtain is not single piece, but by hoof face and these two punching press bodies of the tendons of beef, mutton or pork through intermittently being welded, but weldment is prone to hoof face and tendons of beef, mutton or pork out of plumb, can not guarantee Pingdu after the tendons of beef, mutton or pork welding, after this situation can make brake block and brake shoe combines, when brake block is repaired again, easily cause brake block became uneven and arc surface to change, reduced braking quality, also shortened the life-span of brake block.And produce brake shoe with hot rolling, casting method, though what obtain is integral workblank, must after the machining, be prone to the became uneven of hoof face through machining.And because casting, hot-roll forming efficient is low, coarse, it is big to consume and because casting, hot rolling and weldment, their manufacture method difference, the dressing tool after making brake shoe and brake block combining can not be general.
Purpose of the present invention just provides a kind of method that need not heat, need not weld, not need the whole cold extrusion manufacturing brake shoe of machining.
To achieve these goals, the present invention adopts following technical scheme: the manufacture method of brake shoe of the present invention, adopt whole cold extrusion production process, make material instantaneous generation plasticity and physical deformation under the restriction of mould, reach the geometry and the size of necessary requirement, select for use the hot roll T shaped steel material as former material, be cut into certain length by different vehicle requirements, in the brake shoe mould that is complementary with vehicle that the T section bar that cuts is placed on corresponding operation, under certain pressure, with punch press or with forcing press through (1), press-bending is type just, (2), punching, (3), excision redundance three road processes are promptly finished the manufacturing of the present invention-brake shoe.
Brake shoe integral cold squeezing production method of the present invention has following advantage: (1), smooth in appearance, arc surface precision height, and hoof face thickness unanimity, the perpendicularity of the tendons of beef, mutton or pork and hoof face is good, and the Pingdu of the tendons of beef, mutton or pork is good, no revolution mark, no weld seam.(2), owing to adopt moulding material by the mould extrusion modling, thereby production efficiency height.(3), need not machining, and, can remove operation and material consumptions such as moulding, smelting, wooden model cast, cutting from, thereby production cost is low for foundry goods for weldment.(4), since brake shoe be in impression, to push one-shot forming, so the chance of no modification is the precision height of product.(5), because this method be under situation about not heating, to use the high-pressure extrusion moulding, increased the density of material, the intensity of product is good, has increased the life-span of this part.(6), because the manufacture method that has adopted whole cryogen to press, the circularity of its moulding is good, contact-making surface when having improved the brake of brake shoe and brake drum, so good reliability of brake, and owing to cold extrusion shapedly guaranteed that the hoof face is distortionless with the Pingdu of the vertical and tendons of beef, mutton or pork of the tendons of beef, mutton or pork, thereby improved the sensitivity of braking.(7), the brake shoe of producing with whole cold-stamped manufacture method can utilize any method in foundry goods, hot rolling and the weldment to repair with method for trimming after brake block combines.
The present invention can be illustrated by following embodiment, but is not limited thereto kind of a vehicle.
Be that embodiment is described in detail with the hand-made device brake shoe of EQ140 below.
Accompanying drawing is the hand-made device brake shoe of an EQ140 schematic diagram.
1, hot rolling T section bar is cut into 370 millimeters as former material.
2, the former material that will cut is placed on the counterdie of EQ140 type, all can press down patrix with punch press or punching machine and hydraulic press, and pressure is more than 150 tons, the first type that obtains bending.
3, press after the size of part and shape make mould, the first type that bends is placed on down on the perforating die, press down the punching patrix, the hole is gone out with the various forcing presses more than 100.
4, require to make the blank mould according to finished part, with the part after the punching, be placed on the blank counterdie, patrix presses down the blank patrix with 30 tons punch press or forcing press, the unwanted part of part is cut promptly finish making of the present invention.
Claims (1)
1, a kind of manufacture method of brake shoe, it is characterized in that: adopt whole cold extrusion production process, select for use the hot roll T shaped steel material as former material, require to be cut into certain-length according to vehicle, in the brake shoe mould that is complementary with vehicle that the former material of T type that cuts is placed on corresponding operation, under certain pressure, with punch press or with the fluid power machine through the redundance three road processes of type, punching, excision part just of bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92110012A CN1034479C (en) | 1992-08-23 | 1992-08-23 | Integral cold squeezing production method for brake shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92110012A CN1034479C (en) | 1992-08-23 | 1992-08-23 | Integral cold squeezing production method for brake shoe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1088493A true CN1088493A (en) | 1994-06-29 |
| CN1034479C CN1034479C (en) | 1997-04-09 |
Family
ID=4944557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92110012A Expired - Fee Related CN1034479C (en) | 1992-08-23 | 1992-08-23 | Integral cold squeezing production method for brake shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034479C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699646A (en) * | 2012-05-30 | 2012-10-03 | 石首市新兴汽车配件制造有限公司 | Single-shoe manufacturing method |
| CN105421692A (en) * | 2015-11-30 | 2016-03-23 | 浙江瑞泰塑业有限公司 | Preparation method of profile corner connecting piece |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371124C (en) * | 2006-07-06 | 2008-02-27 | 王伯禹 | Inclusion type motorcycle steel shoe weldment welding method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2268286A (en) * | 1938-12-14 | 1941-12-30 | Walter J Kelly | Brake shoe |
| GB2025274B (en) * | 1978-07-13 | 1982-06-09 | Automotive Prod Co Ltd | Brake shoes and their manufacture |
| US4241600A (en) * | 1978-12-18 | 1980-12-30 | Leonard Friedman | Brake shoe assembly, apparatus and method for making same |
-
1992
- 1992-08-23 CN CN92110012A patent/CN1034479C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699646A (en) * | 2012-05-30 | 2012-10-03 | 石首市新兴汽车配件制造有限公司 | Single-shoe manufacturing method |
| CN105421692A (en) * | 2015-11-30 | 2016-03-23 | 浙江瑞泰塑业有限公司 | Preparation method of profile corner connecting piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034479C (en) | 1997-04-09 |
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